Enable EnvoyPatchPolicy support

- Enable EnvoyPatchPolicy in EnvoyGateway config (extensionApis.enableEnvoyPatch: true)
- Add envoypatchpolicies RBAC to catalog-manager ClusterRole

Signed-off-by: Md. Istiak <mdistiak@appscode.com>

Author: Istiak2019331114

charts/catalog-manager/templates/cluster-role.yaml

@@ -141,6 +141,7 @@ rules:
   - gateway.envoyproxy.io
   resources:
   - envoyproxies
+  - envoypatchpolicies
   - backendtrafficpolicies
   - clienttrafficpolicies
   verbs: ["get", "list", "watch", "create", "update", "patch", "delete"]